The patty will be served on a sesame seed bun with tomato, lettuce, pickles, onions, mayonnaise, ketchup, mustard and a slice of American cheese.

Mushrooms from Hubei province and preserved pickles from Chongqing have all rolled out overseas versions to cater to the palates of foreigners, Feng added.

"By utilizing the RCEP certificate of origin, our Japanese pickles experienced a 2 percent tariff reduction in Japan this year, with the tariff rate expected to decrease further in the coming years," said Liu Lina, the company's general manager.

Loaded with goods such as auto parts, chemicals and Chinese pickles from regions along the land-sea freight route, part of the New International Land-Sea Trade Corridor, X9575 transfers at the Qinzhou Port where the cargo will be shipped to the Association of Southeast Asian Nations (ASEAN) countries.

Thousands of Russian products, ranging from pickles to vodka, flow into the logistics centers every day, awaiting distribution across China.

Top sportswear brands such as Nike, Adidas and domestic ones including Anta and Maia Active have developed yoga-inspired athletic products to bank on the opportunities brought on by rising fitness activities including yoga, Pilates, frisbee, pickle ball and camping.

- The Regional Comprehensive Economic Partnership (RCEP) agreement has facilitated the export of a famous variety of Chinese pickles since it took effect on Jan 1, the customs authorities of Chongqing Municipality said.

The history of pickle-making in Fuling, a major pickle production base, dates back more than 150 years.

"This year, we have exported around 100 containers of pickled mustard tubers, with each weighing 16 to 20 metric tons," said Sun Xiao, foreign trade manager of Chongqing Fuling Luling Industrial Co Ltd. "The pickles were only favored by overseas Chinese in the past.

With the implementation of the RCEP and ensuing tariff reductions and trade facilitation, our pickles have seen stronger competitiveness in overseas markets," Sun added.

The RCEP can enhance the price advantage of Chinese pickled mustard tubers in target markets, reduce the operating costs of enterprises and improve customs clearance efficiency by simplifying administrative procedures, thus giving a boost to pickle exports, said Deng Jikuan, an official with Chongqing Customs.

Under the Brand Wave initiative, mushrooms from Hubei province, preserved donkey meat from Shanxi province and preserved pickles from Chongqing have all rolled out respective overseas versions to cater to the palates of foreigners.

Pickle maker Chongqing Fuling Zhacai Group Co Ltd reported a 3.01 percent year-on-year net profit increase in the third quarter, a growth rate far below the market expectations.